Abstract
Abstract The resistive switching of polymer films embedded with nanoparticles (NPs) offers the promise for future flexible and transparent memory applications. However, the polymer/NP interfacial effect on switching behavior under various mechanical stimuli is a vital issue that has received scant attention. Here, polymer thin films embedded with TiO2 NPs were fabricated by vacuum spray method to study how the polymer/NP interface affects the switching behavior, especially under severe bending conditions. Compared with that of the initial sample, the ON/OFF ratio decreases by two orders of magnitude with the conduction mechanism translating from trap-controlled space charge limited current conduction to Poole−Frankel emission after repetitive bending. Surface wrinkle and interfacial micro cracks were observed. Using the finite element analyses and quantum chemical calculation, we show that the TiO2 NPs produce strain-sensitive regions within the film, and micro cracks initiate and propagate along the polymer/NP interface under severe bending. Such cracks can serve as vacuum gap to block the carriers transport and further result in the deterioration of switching performance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
